화학공학소재연구정보센터
Journal of Crystal Growth, Vol.344, No.1, 1-5, 2012
Micro-twins TiO2 nanorods grown on seeded ZnO film
TiO2 anatase nanorods (NRs) epitaxially grew along the [001] direction at 600 degrees C on seeded c-axis oriented ZnO films which were deposited on a quartz glass substrate. The length of TiO2 NRs was about 450 nm. Micro-twins (MTs) were found in the TiO2 NRs with the (103) plane as the twin planes. The possible growth mechanisms of these TiO2 MTs have been studied using X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). The photo-degradation experiment showed that the TiO2 NRs have a high degradation efficiency of 32.9%. The effects of structural defects and MTs on the photocatalytic activity have been discussed. (C) 2012 Elsevier B.V. All rights reserved.